So far Let’s Go pika/eevee have been the most visually appealing Pokémon games on switch. I think this is do to the regressed features and smaller roaster of monsters they were able to focus on perfecting the style they were going for. BDSP also has great battle backgrounds especially the ones in the under ground. SWSH has the worst backgrounds for battle. Legends just has the fights in the over world so I can’t even judge it like the others